Jules François Alexandre Joffrin (16 March 1846 – 17 September 1890) was a French politician.
Joffrin was born at Troyes. He served in the Franco-German War, was involved in the Commune, and spent eleven years in England as a political exile. He attached himself to the possibilist group of the socialist party, the section opposed to the root-and-branch measures of Jules Guesde. He became a member of the municipal council of Paris in 1885, and vice-president in 1888–1889.
Violently attacked by the Boulangist organs, L'Intransigeant and La France, he won a suit against them for libel, and in 1889 he contested the 18th arrondissement of Paris with General Boulanger, who obtained a majority of over 2000 votes, but was declared ineligible.
Joffrin was only admitted to the Chamber after a heated discussion, and continued to be attacked by the nationalists. He died in Paris on 17 September 1890.
A Paris Métro station, Jules Joffrin, is named in his honour. The station is located in Montmartre, near the town hall of the 18th arrondissement.